Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
In JavaScript, a predicate function is a function that returns a Boolean value. In other words, it is a function that tests whether a certain condition is true or false.There are times when we need to negate a predicate function. That is, we need to return the opposite Boolean value.There are several ways to negate a predicate function in JavaScript.Using the ! operatorThe most common way to negate a predicate function is to use the ! operator.For example, consider the following predicate function −function isEven(num) { return num % 2 === 0; }To negate this function, we can use ... Read More
This tutorial will discuss how to write a swift program to calculate simple interest. Simple interest is the most commonly used method to find the interest on the money for a given time period. In this method, the interest is always applied to the original principal amount with same the interest rate for every time period. It is calculated by multiplying the interest rate by the principal amount and the time. Formula Following is the formula of simple interest − S.I = Principal Amount(P) x Time(T) x Rate(R)/100 Where Principal(P) − Principal amount represents the amount that is initially invested. ... Read More
With the help of HTML, CSS, and JavaScript, it is possible to create a navigation menu with a curved active tab. This can be done by using the ::before and ::after pseudo-elements to create the desired shape, and then using JavaScript to add the active class to the element. HTML The HTML for this navigation menu is very simple. There is a ul element with a class of "nav" and within that, there are six li elements, each with a class of "nav-item". Home About Services Portfolio ... Read More
The Fullscreen API is a browser API that allows developers to request fullscreen display from the user, and to exit fullscreen when desired. Using the Fullscreen API is relatively simple. First, you must check if the browser you are using supports the Fullscreen API. You can do this by checking for the presence of the Fullscreen API's enabled property on the document object. If the browser does not support the Fullscreen API, you can still provide a fullscreen experience to your users by using another method, such as opening a new browser window. Assuming the browser does support the Fullscreen ... Read More
You can choose between creating an EXE or a DLL when writing Dot NET code. Both of these include executable code, however, DLL and EXE operate differently from one another. The EXE will create its own thread and reserve resources for it if you run it. A DLL file, on the other hand, is an in-process server, so you cannot run a DLL file on its own. A DLL's code is used by a running application by loading and calling the DLL. The primary objective of a DLL is to facilitate the process of compartmentalizing a computer program. ... Read More
Both the TRUNCATE statement and the DELETE statement are included in the category of SQL queries for deleting the data stored in a table. They carry out deletion operations on records or rows of a table that are no longer needed. A condition is applied before each entry in the table that is being deleted when using the DELETE command. To put it another way, it is possible to delete one or more rows all at once. However, with the TRUNCATE command, each row is removed from the table simultaneously. When we delete something using the DELETE query, a log ... Read More
When you search the Internet, do you know whether you are browsing the internet or just surfing? Next time you go on the Internet, you may relate to the following points to decide whether you are browsing or surfing. What is Browsing? When people visit a website, they cannot open it without using an online browser. A browser is a program that allows the user to type a search term and reach the source to gain more information. In simple terms, browsing is an act of looking for information and reading about a specific topic with a particular goal or ... Read More
Cookies are small pieces of data that are sent from a website to a user's web browser. They are used to store information about the user, such as their preferences or login status. When a user visits a website, their web browser will send a request to the server. The server will then send a response, which includes a set of headers. One of these headers is the "Cookie" header, which contains a list of all the cookies that are associated with the website. Parsing the Cookie Header In order to parse the Cookie header, we need to first split ... Read More
In this tutorial, we will learn how to generate a random birthday wish using JavaScript. We will use the Math.random() method to generate a random number between 1 and 10. This number will be used to select a birthday wish from an array of wishes. The Math.random() Method The Math.random() method is a built-in function in JavaScript that returns a random number between 0 ( inclusive) and 1 (exclusive). Generating a Random Birthday Wish To generate a random birthday wish, we will use the Math.random() method to generate a random number between 1 and 10. This number will be used ... Read More
In programming, shadowing occurs when a variable declared in a certain scope (e.g. a local variable) has the same name as a variable in an outer scope (e.g. a global variable). When this happens, the outer variable is said to be shadowed by the inner variable. In JavaScript, variables can be shadowed in both the global and function scope. Global variables can be shadowed by function-scoped variables, and function-scoped variables can be shadowed by block-scoped variables declared with the let or const keyword. Variable Shadowing in the Global Scope In the global scope, shadowing occurs when a variable declared with ... Read More